- 16 Mar, 2009 22 commits
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Senthil Balasubramanian authored
We can sleep for memory during init time and so allocating rx buffers, descriptro buffers with GFP_KERNEL should help us to get rid of transient alloc fails. Signed-off-by:
Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Luis R. Rodriguez authored
This is the lowest value amongst countries which do enable 5 GHz operation. Signed-off-by:
Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by:
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Luis R. Rodriguez authored
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Luis R. Rodriguez authored
ACME Inc. is now selling a dual band radio. Signed-off-by:
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Christian Lamparter authored
This patch enables power save support on all p54 devices. Signed-off-by:
Christian Lamparter <chunkeey@web.de> Signed-off-by:
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Christian Lamparter authored
This patch adds SoftLED support for all p54 devices. Signed-off-by:
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Christian Lamparter authored
Disabling the receiver logic with P54_FILTER_TYPE_RX_DISABLED is not supported by all firmwares. However we have an alternative: hibernation. And the only side effect - so far - is a bit less power consumption. WIN! Signed-off-by:
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Christian Lamparter authored
This patch replaces most printk(KERN_* "") with their by dev_* analogue. Signed-off-by:
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Christian Lamparter authored
All three drivers (p54pci, p54usb and p54spi) are implementing the same functionality three times. So, why not put it into the shared library?! Signed-off-by:
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Christian Lamparter authored
The patch fixes a problem when the (Soft)LED stayed on after the module was unloaded. It turned out that the USB core disables all endpoints before calling the disconnect method. So it was impossible to switch off the radio & LEDs. Signed-off-by:
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Gabor Juhos authored
The driver are trying to create an 'ath9k' directory in debugfs for each device currently. If there are more than one device in the system, the second try will always fail. Changes-licensed-under: ISC Signed-off-by:
Gabor Juhos <juhosg@openwrt.org> Signed-off-by:
Imre Kaloz <kaloz@openwrt.org> Signed-off-by:
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Jouni Malinen authored
Incorrect local->wmm_acm bits were set for AC_BK and AC_BE. Fix this and add some comments to make it easier to understand the AC-to-UP(pair) mapping. Set the wmm_acm bits (and show WMM debug) even if the driver does not implement conf_tx() handler. In addition, fix the ACM-based AC downgrade code to not use the highest priority in error cases. We need to break the loop to get the correct AC_BK value (3) instead of returning 0 (which would indicate AC_VO). The comment here was not really very useful either, so let's provide somewhat more helpful description of the situation. Since it is very unlikely that the ACM flag would be set for AC_BK and AC_BE, these bugs are not likely to be seen in real life networks. Anyway, better do these things correctly should someone really use silly AP configuration (and to pass some functionality tests, too). Remove the TODO comment about handling ACM. Downgrading AC is perfectly valid mechanism for ACM. Eventually, we may add support for WMM-AC and send a request for a TS, but anyway, that functionality won't be here at the location of this TODO comment. Signed-off-by:
Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by:
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Andrey Borzenkov authored
Currently part of support for FW caching is unconditionally compiled in even if it is never used. Consistently remove caching support if not requested by user. Signed-off-by:
Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by:
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Ilpo Järvinen authored
It's not too likely to happen, would basically require crafted packets (must hit the max guard in tcp_bound_to_half_wnd()). It seems that nothing that bad would happen as there's tcp_mems and congestion window that prevent runaway at some point from hurting all too much (I'm not that sure what all those zero sized segments we would generate do though in write queue). Preventing it regardless is certainly the best way to go. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ilpo Järvinen authored
The results is very unlikely change every so often so we hardly need to divide again after doing that once for a connection. Yet, if divide still becomes necessary we detect that and do the right thing and again settle for non-divide state. Takes the u16 space which was previously taken by the plain xmit_size_goal. This should take care part of the tso vs non-tso difference we found earlier. Signed-off-by:
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Ilpo Järvinen authored
There's very little need for most of the callsites to get tp->xmit_goal_size updated. That will cost us divide as is, so slice the function in two. Also, the only users of the tp->xmit_goal_size are directly behind tcp_current_mss(), so there's no need to store that variable into tcp_sock at all! The drop of xmit_goal_size currently leaves 16-bit hole and some reorganization would again be necessary to change that (but I'm aiming to fill that hole with u16 xmit_goal_size_segs to cache the results of the remaining divide to get that tso on regression). Bring xmit_goal_size parts into tcp.c Signed-off-by:
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Ilpo Järvinen authored
It seems that no variables clash such that we couldn't do the check just once later on. Therefore move it. Also kill dead obvious comment, dead argument and add unlikely since this mtu probe does not happen too often. Signed-off-by:
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Ilpo Järvinen authored
Wow, it was quite tricky to merge that stream of negations but I think I finally got it right: check & replace_ts_recent: (s32)(rcv_tsval - ts_recent) >= 0 => 0 (s32)(ts_recent - rcv_tsval) <= 0 => 0 discard: (s32)(ts_recent - rcv_tsval) > TCP_PAWS_WINDOW => 1 (s32)(ts_recent - rcv_tsval) <= TCP_PAWS_WINDOW => 0 I toggled the return values of tcp_paws_check around since the old encoding added yet-another negation making tracking of truth-values really complicated. Signed-off-by:
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Ilpo Järvinen authored
I've already forgotten what for this was necessary, anyway it's no longer used (if it ever was). Signed-off-by:
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Ilpo Järvinen authored
In the pure assignment case, the earlier zeroing is still in effect. David S. Miller raised concerns if the ifs are there to avoid dirtying cachelines. I came to these conclusions: > We'll be dirty it anyway (now that I check), the first "real" statement > in tcp_rcv_established is: > > tp->rx_opt.saw_tstamp = 0; > > ...that'll land on the same dword. :-/ > > I suppose the blocks are there just because they had more complexity > inside when they had to calculate the eff_sacks too (maybe it would > have been better to just remove them in that drop-patch so you would > have had less head-ache :-)). Signed-off-by:
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Jarek Poplawski authored
While looking for a possible reason of bugzilla report on HTB oops: http://bugzilla.kernel.org/show_bug.cgi?id=12858 I found the code in htb_delete calling htb_destroy_class on zero refcount is very misleading: it can suggest this is a common path, and destroy is called under sch_tree_lock. Actually, this can never happen like this because before deletion cops->get() is done, and after delete a class is still used by tclass_notify. The class destroy is always called from cops->put(), so without sch_tree_lock. This doesn't mean much now (since 2.6.27) because all vulnerable calls were moved from htb_destroy_class to htb_delete, but there was a bug in older kernels. The same change is done for other classful scheds, which, it seems, didn't have similar locking problems here. Reported-by:
m0sia <m0sia@m0sia.ru> Signed-off-by:
Jarek Poplawski <jarkao2@gmail.com> Signed-off-by:
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Eric Dumazet authored
On x86_64, its rather unfortunate that "wait_queue_head_t wait" field of "struct socket" spans two cache lines (assuming a 64 bytes cache line in current cpus) offsetof(struct socket, wait)=0x30 sizeof(wait_queue_head_t)=0x18 This might explain why Kenny Chang noticed that his multicast workload was performing bad with 64 bit kernels, since more cache lines ping pongs were involved. This litle patch moves "wait" field next "fasync_list" so that both fields share a single cache line, to speedup sock_def_readable() Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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- 14 Mar, 2009 18 commits
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Dhananjay Phadke authored
To mark all features and bugfixes submitted since 4.0.11. Signed-off-by:
Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by:
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Dhananjay Phadke authored
This patch enables the load balancing capability of firmware and hardware to spray traffic into different cpus through separate rx msix interrupts. The feature is being enabled for NX3031, NX2031 (old) will be enabled later. This depends on msi-x and compatibility with msi and legacy is maintained by enabling single rx ring. Signed-off-by:
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Dhananjay Phadke authored
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Dhananjay Phadke authored
o remove max_ prefix from ring sizes, since they don't really represent max possible sizes. o cleanup naming of rx ring types (normal, jumbo, lro). o simplify logic to choose rx ring size, gig ports get half rx ring of 10 gig ports. Signed-off-by:
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Dhananjay Phadke authored
Detach network interface on PCI suspend and recreate hardware context after resumes. Signed-off-by:
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Dhananjay Phadke authored
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PJ Waskiewicz authored
Documentation for the ixgbe driver in the kernel docs area is missing. This adds that documentation. Signed-off-by:
Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Jesse Brandeburg authored
Cleanup a bit of whitespace, add some function header comments, and fix a few comments around the driver. Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by:
Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by:
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PJ Waskiewicz authored
The Tx DMA unit should be disabled when bringing the device down. Also, the KX4 device with 82599 supports WoL, so we should clear the Wake Up Status (WUS) after a PCIe slot reset. Signed-off-by:
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Jesse Brandeburg authored
There are possible times that a driver may fail to completely initialize, due to a buggy platform or a buggy kernel. In those cases, we'd rather fail gracefully instead of a panic. Add a few safety checks to some critical paths to try and prevent a panic in these corner-case situations. Signed-off-by:
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Jesse Brandeburg authored
This cleans up the following pieces of the Rx initialization path: - Enable the ECC memory fault interrupt in OTHER causes. - Fix an 82598 initialization of RDRXCTL when depending on RSS and VMDq to be enabled. We don't need these features enabled to safely set the MVMEN bit to allow multiple SRRCTL register mappings into the RXDCTL registers. - Fix the RSS initialization path to not stomp on DCB accidentally. When configuring the MRQC (multiple Rx queue contol) register, we want to make sure we only OR in features as necessary, instead of full assignment. Signed-off-by:
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Jesse Brandeburg authored
The Tx accounting when cleaning during NAPI was not completely properly. We should use the work_limit to determine when to finish cleaning, and use the same to return the cleaned status. The impact of running like this causes the NAPI clean for this Tx to get stuck in a scheduling loop, and can result in Tx not getting cleaned, ending with a Tx hang and device reset. Signed-off-by:
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Jesse Brandeburg authored
Occasionally if the driver was loaded in a system that didn't support MSI-X or MSI and was on a shared interrupt, the driver would then panic in NAPI on the first shared interrupt because we hadn't called napi_add yet. Solution: call napi_add before calling request_irq Signed-off-by:
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Jesse Brandeburg authored
The interrupt models using EITR have changed in 82599. The way the register is laid out, the change is transparent to some of the existing code. However, some of it isn't. This patch fixes all the cases where EITR handling is different than 82598. Signed-off-by:
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PJ Waskiewicz authored
82599 mistakenly enabled drop on Rx queues in the packet buffer. The default mode should be store-and-forward from the FIFO. Signed-off-by:
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PJ Waskiewicz authored
The rx_no_dma_resources counter reported by ethtool -S ethX is not counting correctly. In 82599, the queue mappings for the counters need to be mapped properly, and accounted for properly. Signed-off-by:
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PJ Waskiewicz authored
A purely cosmetic change. Report which physical layer is present, instead of PHY unknown. 82599 added new PHY types for the SFP+ devices, and this was missed getting updated. Signed-off-by:
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Alexander Duyck authored
Add support for 82576 copper adapter and necessary code to restrict wol for quad port adapter to first port. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Acked-by:
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